William Sheppard was an American missionary and explorer known for his work in the Congo during the late 19th and early 20th centuries. He was a prominent figure in the Presbyterian Church and dedicated his life to spreading Christianity and education in Africa. Sheppard is often recognized for his efforts to advocate for the rights of the Congolese people. In addition to his missionary work, Sheppard became an important voice against the abuses occurring under King Leopold II of Belgium's rule in the Congo. His experiences and observations led him to speak out about the exploitation and atrocities faced by the local population, making him a significant figure in the history of humanitarian efforts in Africa.